13980123 has 6 divisors (see below), whose sum is σ = 20193524. Its totient is φ = 9320076.

The previous prime is 13980107. The next prime is 13980149. The reversal of 13980123 is 32108931.

It is not a de Polignac number, because 13980123 - 2⁴ = 13980107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13980193) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 776665 + ... + 776682.

Almost surely, 2^13980123 is an apocalyptic number.

13980123 is a deficient number, since it is larger than the sum of its proper divisors (6213401).

13980123 is a wasteful number, since it uses less digits than its factorization.

13980123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1553353 (or 1553350 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 13980123 is about 3739.0002674512. Note that the first 3 decimals coincide. The cubic root of 13980123 is about 240.9001095414.

The spelling of 13980123 in words is "thirteen million, nine hundred eighty thousand, one hundred twenty-three".